IDEAS home Printed from https://ideas.repec.org/a/eee/phsmap/v146y1987i3p452-482.html
   My bibliography  Save this article

Quantum beats and superradiant effects in the spontaneous emission from two nonidentical atoms

Author

Listed:
  • Ficek, Z.
  • Tanaś, R.
  • Kielich, S.

Abstract

The problem considered is that of the spontaneous emission from two nonidentical two-level atoms coupled to a continuum of quantized electromagnetic modes. The atoms are separated by distances comparable to the resonant wavelength and have different transition frequencies and natural linewidths. Correlation functions and radiation rates are expressed in terms of expectation values of time-dependent atomic operators. The radiation pattern, total radiation rate and spectral distribution of radiation are obtained with the initial conditions that only one atom is excited and that the system is fully inverted. We find that the radiation pattern and total radiation rate show quantum beats when initially only one atom is excited. Moreover, the total radiation rate for strong interatomic interaction becomes greater than its initial value at the beginning of the emission process. This “superradiant” property is absent for two identical atoms. For initially fully inverted system, the radiation pattern and total radiation rate decay monotonically in time. Some weak beats can appear for drastically different atoms. The spectrum of radiation calculated for the case of strong interatomic interaction, i.e., for separations much smaller than the resonant wavelength shows two peaks, located at frequency ±Ω12, contrary to the case of identical atoms, when the spectrum consists of only one peak located at the frequency +Ω12.

Suggested Citation

  • Ficek, Z. & Tanaś, R. & Kielich, S., 1987. "Quantum beats and superradiant effects in the spontaneous emission from two nonidentical atoms," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 146(3), pages 452-482.
  • Handle: RePEc:eee:phsmap:v:146:y:1987:i:3:p:452-482
    DOI: 10.1016/0378-4371(87)90280-9
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/0378437187902809
    Download Restriction: Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

    File URL: https://libkey.io/10.1016/0378-4371(87)90280-9?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Hassan, S.S. & Bullough, R.K. & Puri, R.R. & Lawande, S.V., 1980. "Intensity fluctuations in a driven Dicke model," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 103(1), pages 213-225.
    2. Drath, P. & Gibbsons, M. & Johnston, R., 1977. "The super-computer project: a case study of the interaction of science, government and industry in the UK," Research Policy, Elsevier, vol. 6(1), pages 2-34, January.
    3. William Knight, 1974. "A Remark on Algorithm as 37," Journal of the Royal Statistical Society Series C, Royal Statistical Society, vol. 23(1), pages 100-101, March.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Klodt, Henning, 1987. "Wettlauf um die Zukunft: Technologiepolitik im internationalen Vergleich," Open Access Publications from Kiel Institute for the World Economy 372, Kiel Institute for the World Economy (IfW Kiel).

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:phsmap:v:146:y:1987:i:3:p:452-482. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/physica-a-statistical-mechpplications/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.